#Isto  funciona

class Teste
    def initialize(p1,p2)
       @v1 = p1
       @v2 = p2
    end\par
    def show
       puts "#{@v1},#{@v2}
    end
end


class Teste2 < Teste
   def initialize(p1)
     super(p1,0)
   end
end


t1 = Teste::new(1,2)
t2 = Teste2::new(3)
t1.show
t2.show

 